ad/disad of ac/dc generators (1 Viewer)

[~~Jess~~]

i think thats the dotpoint. my knowledge on generators isnt too crash hot so help would be greatly appreciated. just needa know the diff apart from slip-rings n split-ring comutator and if one is better than the other.
thanks!

 

[Jase]

Comparing AC and DC is the usual type of question:

AC -
GOOD
- Easily and efficiently transformed due to alternating nature
- efficient power transmission due to transformation
- AC generators are easier to maintain and more reliable due to fewer parts
- easy to utilise in household applications
- Slip rings means less wear than commutator in DC
- Three phase induction makes easy generation of electricity
BAD
- the hum that AC produces due to oscillating nature interferes with electronics
- constant back-emf

DC
GOOD
- No back emf once current is flowing
- provides steady voltage and currrent output for some specific tasks
- heavier loads
BAD
- heavier loads also means increased risk of damage due to heavier rotor
- the commutator spins alot so friction can wear it out and needs repairs or reduces efficiency
- hard to transform.

As one can see, DC sucks ass.

 

[superbird]

DC rocks for superconductors though

 

[FcUk]

DC cant be transmitted as far it gradually faded
DC split ring commutator can spark which can light flammables etcc
AC interefers with heart beat

 

[~~Jess~~]

thanks heaps!!